Printed wiring board means with isolated voltage source means
US4641043A · kind A · utility
5Cited by
21References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1985 |
| Grant date | Feb 3, 1987 |
| Priority date | — |
| Expiry date | Sep 12, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/09972
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An ignition control device that utilizes a very sensitive flame rectification signal responsive circuit is disclosed. A printed wiring board arrangement is utilized with a careful arrangement of the conductive areas on the printed wiring board to substantially eliminate leakage paths that can provide a false indication of the presence of flame when none in fact is present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.